thx 4 .18 !

though having the same problem i had with cuda 10.2 when self compiled but this time with you'r realeased 18.exe (cuda 11 is installed and working fine)

-check all fine
prefix search all fine (though not testet over 50 prefixes)
searching very few adresses runs a while but even below 100 adresses:

VanitySearch v1.18
Search: 73 addresses (Lookup size 37,[1,7]) [Compressed or Uncompressed]
Start Tue Jun 23 13:24:08 2020
Base Key: Randomly changed every 44400 Mkeys
Number of CPU thread: 0
GPU: GPU #0 GeForce RTX 2080 Ti (68x64 cores) Grid(544x512)
[852.29 Mkey/s][GPU 852.29 Mkey/s][Total 2^31.67][Prob 0.0%][50% in 3.76903e+31y][Found 0]  GPUEngine: Launch: an illegal memory access was encountered

is there maybe some cuda environment setting i'm missing or havent set ?!

thx up front...